A.3.0t B.4.0t C.5.0t D.6.0t
A.75~90℃ B.90~150℃ C.150~160℃ D.〉200℃
A.50mm B.60mm C.70mm D.80mm
A.保持不變 B.明顯上升 C.明顯下降
A.能繼續(xù)放渣 B.不能繼續(xù)放渣 C.均可以